/*
 * Copyright  1999-2004 The Apache Software Foundation.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */
package org.apache.xml.security.samples.signature;



import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.apache.xml.security.c14n.Canonicalizer;
import org.apache.xml.security.signature.ObjectContainer;
import org.apache.xml.security.signature.SignatureProperties;
import org.apache.xml.security.signature.SignatureProperty;
import org.apache.xml.security.signature.XMLSignature;
import org.w3c.dom.Document;


/**
 * Class SignaturePropertiesSample
 *
 * @author $Author$
 * @version $Revision$
 */
public class SignaturePropertiesSample {

   /**
    * Method main
    *
    * @param args
    * @throws Exception
    */
   public static void main(String args[]) throws Exception {

      org.apache.xml.security.Init.init();

      DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

      dbf.setNamespaceAware(true);

      DocumentBuilder db = dbf.newDocumentBuilder();
      Document doc = db.newDocument();
      XMLSignature sig = new XMLSignature(doc, null,
                                          XMLSignature.ALGO_ID_MAC_HMAC_SHA1);

      doc.appendChild(sig.getElement());

      SignatureProperty prop1 = new SignatureProperty(doc,
                                   "http://www.xmlsecurity.org/#target",
                                   "prop1");

      prop1.getElement()
         .appendChild(doc.createTextNode("\n   some data for this property\n"));

      SignatureProperties props = new SignatureProperties(doc);

      props.addSignatureProperty(prop1);

      ObjectContainer object = new ObjectContainer(doc);

      object.appendChild(doc.createTextNode("\n"));
      object.appendChild(props.getElement());
      object.appendChild(doc.createTextNode("\n"));
      sig.appendObject(object);
      sig.addDocument("#prop1");

      String secretKey = "secret";

      sig.getKeyInfo().addKeyName("The UTF-8 octets of \"" + secretKey
                                  + "\" are used for signing ("
                                  + secretKey.length() + " octets)");
      sig.sign(sig.createSecretKey(secretKey.getBytes()));

      Canonicalizer c14n =
         Canonicalizer.getInstance(Canonicalizer.ALGO_ID_C14N_WITH_COMMENTS);

      System.out.println("---------------------------------------");
      System.out.println(new String(c14n.canonicalizeSubtree(doc)));
      System.out.println("---------------------------------------");
      System.out
         .println(new String(sig.getSignedInfo().item(0).getTransformsOutput()
            .getBytes()));
      System.out.println("---------------------------------------");
   }
}
